>>1152700I was aware of the replace feature, but even relatively new rolling stock breaks down too often in OpenTTD. I don't like the feature that makes prototype offer trains break down so much either. Great WebM illustrating the feature though.
When I played with breakdowns I'd find myself doing stupid stuff like building massive passing loops / sections of parallel track going the same way and crossovers so that trains could route around breakdowns, which is just stupid.
Also if a train breaks down across a station entrance or exit then your entire line is kill.